<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计 </el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
      <div id="main" style="width: 750px; height: 400px"></div>
    </el-card>
  </div>
</template>

 <script>
import * as echarts from "echarts";
import _ from "lodash";

export default {
  name: "Report",
  data() {
    return {
      // 图表数据
      options: {
        title: { text: "用户来源" },
        tooltip: {
          trigger: "axis",
          axisPointer: { type: "cross", label: { backgroundColor: "#E9EEF3" } },
        },
        grid: { left: "3%", right: "4%", bottom: "3%", containLabel: true },
        xAxis: [{ boundaryGap: false }],
        yAxis: [{ type: "value" }],
      },
    };
  },
  methods: {},
  created() {},
  async mounted() {
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById("main"));
    const { data: res } = await this.$http.get("reports/type/1");
    if (res.meta.status !== 200) return this.$message.error("获取图表数据失败");
    const result = _.merge(res.data,this.options)
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(result);
  },
};
</script>

<style lang='less' scoped>
</style>